Climate ZonesHawaiiMaui

Maui, Hawaii HVAC Climate Zone

Maui is located in IECC Climate Zone 1A (Very Hot - Humid). Get accurate Manual J load calculations with official design temperatures for Maui.

Climate Zone
1A
Winter Design
44°F
Summer Design
94°F
ZIP Codes
14

Maui HVAC Contractors: Get Your Free Manual J Report

Climate Zone 1A requires precise load calculations. Upload your Maui blueprint and get a professional Manual J report in 60 seconds— first report is FREE. Pre-loaded with Maui's exact design temperatures (44°F winter / 94°F summer).

Claim Free Report
No credit card required

Verify Your Maui ZIP Code

Enter your ZIP code to confirm it's in Maui and get climate zone details.

Maui covers 14 ZIP codes: 96708, 96713, 96729, 96732, 96748, 96753, 96757, 96761, 96763, 96768 and 4 more

Maui Design Temperatures

Official ASHRAE design temperatures for Maui, used for accurate Manual J load calculations.

Winter 99% Design Temp
44°F
Summer 1% Design Temp
94°F
Summer Wet Bulb
78°F

IECC Requirements for Zone 1A

Minimum insulation and window requirements for Maui per IECC 2021.

Wall Insulation:R-13
Roof/Ceiling:R-30
Floor Insulation:R-13
Window U-Factor:0.4
Window SHGC:0.25

Energy Code: 2021 IECC

Recommended HVAC Equipment for Maui

Heating Systems

Heat pump
Gas furnace (backup)
Electric resistance
Typical AFUE
80-90%

Cooling Systems

High-efficiency AC (16+ SEER)
Heat pump
Typical SEER
15-18 SEER

Related Climate Zone Pages

Learn More About
Climate Zone 1A
View All Zones in
Hawaii
HVAC Permits for
Maui, Hawaii

Get Free Manual J Calculations for Maui

Upload your Maui blueprint and get a professional Manual J load calculation using official Zone 1A design temperatures. First report is FREE.

Maui design temps
Zone 1A compliant
Ready in 60 seconds
Upload Blueprint → Get Free Report

Join 10,000+ Maui contractors who trust AutoHVAC